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[1]赵世伟,陈国良,郭玉孝.旱地农田春麦系统氮素运移现状及改善途径探讨[J].水土保持研究,1996,3(01):57-61,65.
　Zhao Shiwei,Chen Guoliang,Guo Yuxiao.The Present Situation and Its Improving Ways of Nitrogen Transport in Farmland Spring Wheat System in Dryland Farming[J].Research of Soil and Water Conservation,1996,3(01):57-61,65.

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旱地农田春麦系统氮素运移现状及改善途径探讨

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 3 期数: 1996年01期页码: 57-61,65 栏目: 出版日期: 1900-01-01

Title:: The Present Situation and Its Improving Ways of Nitrogen Transport in Farmland Spring Wheat System in Dryland Farming

作者:: 赵世伟, 陈国良, 郭玉孝; 中国科学院、水利部水土保持研究所陕西杨陵 712100

Author(s):: Zhao Shiwei, Chen Guoliang, Guo Yuxiao; Institute of Soil and Water Conservation, the Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, 712100

关键词:: 旱地农田; 氮素运移; 改善途径

Keywords:: dryland farming system; nitrogen transport; improving ways

摘要:: 作者运用¹⁵N同位素标记手段，结合田间氨挥发直接测定技术，对黄土高原半干旱区，旱作春麦农田氮素运移现状进行了系统地研究；指出化肥氮素的高挥发，高残留，高不明途径损失和低利用率构成了该区旱作农田氮素“三高一低”的运移特征；并对改善氮素运移，提高氮肥利用率的途径进行了探讨.

Abstract:: With the ¹⁵N isotopic tracing and the direct testing of NH₃ volatilization in field micro-pot test, the authors have made systematic studies on the nitrogrn transport in spring wheat field in the current application methods in dryland of semi-arid loess plateau and advanced the characteristic of "3 higher and 1 lower" of nitrogen transport in crop period of duration: higher volatilization, higher remainder in soil, higher loss of non-conclusive ways and lower utilization rate; and discussed the ways of improving the nitrogen transport and increasing the nitrogen fertilizer utilization rate.

参考文献/References:

[1] 朱兆良, 蔡贵信等(1989).石灰性稻田土壤上化肥氮素损失的研究, 土壤学报.Vol. 26, No. 4, 337-343
[2] Jack A. Morgan. Characteristics of Ammonia Valatilization fromSpring Wheat. Crop science. 1989 Vol. 29.No. 3, 726-731
[3] 田霄鸿, 李生秀等.植物体氮素的挥发损失.现代土壤科学研究, 中国农业科技出版社, 北京:1994 625-629
[4] 蒋能慧.土壤中挥发性氨的定量测定.土壤.1979 No.3, 193-197
[5] 曲秀清等.按态氮肥在石灰性土壤中损失的研究.土壤肥料, 1986 No. 3, 31-35
[6] L. A. Harper. Nitrogen Cycling in a Wheat Crop. Agronomy J. Vo. 79, 1987 No. 6, 965-973
[7] 李光锐, 陈培森等.模拟机具追施碳酸氢按对旱作土壤中氮肥去向的影响.土壤肥料, 1988 No. 2.15-18
[8] A. Alexander.(常月译)叶面施肥的现代趋势.国外农学-土壤肥料, 1988 No.4, 15-18

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备注/Memo

收稿日期:1995-11-10;改回日期:。

更新日期/Last Update: 1900-01-01